Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Yuta Mizumoto"'
Publikováno v:
Nanotechnology and Precision Engineering, Vol 1, Iss 3, Pp 157-171 (2018)
Single-crystal sapphire is utilized as a high-performance engineering material, especially in extreme and harsh environments. However, due to its extreme hardness and brittleness, the machinability of sapphire is still a challenge. By means of nanoin
Externí odkaz:
https://doaj.org/article/689c0e6e63f64112bf0ca9f7674b994d
Autor:
Hiroki Itobe, Yosuke Nakagawa, Yuta Mizumoto, Hiroi Kangawa, Yasuhiro Kakinuma, Takasumi Tanabe
Publikováno v:
AIP Advances, Vol 6, Iss 5, Pp 055116-055116-10 (2016)
We fabricated a calcium fluoride (CaF2) whispering gallery mode (WGM) microcavity with a computer controlled ultra-precision cutting process. We observed a thermo-opto-mechanical (TOM) oscillation in the CaF2 WGM microcavity, which may influence the
Externí odkaz:
https://doaj.org/article/900067b13f284e0480ce5e3af8bb960a
Autor:
Yuta Mizumoto, Yasuhiro Kakinuma
Publikováno v:
Precision Engineering. 53:9-16
A resolved stress model is presented to re-discuss the anisotropic deformation mechanism of single-crystal calcium fluoride in plunge-cut tests. The authors have investigated the machinability of CaF2 in ultra-precision cutting. However, the influenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbdca25c58ecf6a17b252a5456f87a1d
https://doi.org/10.1016/j.precisioneng.2018.01.011
https://doi.org/10.1016/j.precisioneng.2018.01.011
Autor:
Hikaru Amano, Yuta Mizumoto, Yasuhiro Kakinuma, Katsuko Harano, Hitoshi Sumiya, Hiroi Kangawa
Publikováno v:
Precision Engineering. 52:73-83
The subsurface quality of single-crystal calcium fluoride (CaF2) is examined by ultra-precision cutting experiments using a boron-doped nano-polycrystalline diamond (B-NPD) tool and compared with that of CaF2 machined with a single-crystalline diamon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f33abb8e8b3e2ea9ff2ebd5636468b5
https://doi.org/10.1016/j.precisioneng.2017.11.005
https://doi.org/10.1016/j.precisioneng.2017.11.005
Publikováno v:
Mechanical Engineering Letters. 4:17-00491
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a570adf0b89c7fcdfb45556b0ea5eee
https://doi.org/10.1299/mel.17-00491
https://doi.org/10.1299/mel.17-00491
Influence of crystal anisotropy on subsurface damage in ultra-precision cylindrical turning of CaF 2
Publikováno v:
Precision Engineering. 49:104-114
An optical microcavity, which stores light at a certain spot, is an essential component to realize all-optical signal processing. Single-crystal calcium fluoride (CaF2) theoretically shows a high Q-factor which is a desirable optical property. The Ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9a654f572f3fec097e0e5f392b33325
https://doi.org/10.1016/j.precisioneng.2017.01.017
https://doi.org/10.1016/j.precisioneng.2017.01.017
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 18:109-114
Sapphire has received increasing attention as an engineering material even though its machinability is still an issue. In this study, the influence of the milling process parameters on the surface quality of single-crystal sapphire is investigated. D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::848ac3f29fbbf7195f7dc68ba021c559
https://doi.org/10.1007/s12541-017-0013-8
https://doi.org/10.1007/s12541-017-0013-8
Publikováno v:
CIRP Annals. 66:89-92
In this study, plunge-cut tests are conducted on single-crystal sapphire to investigate the brittle and ductile deformation mechanisms from the viewpoint of crystal anisotropy. The anisotropic deformation behaviour of the machined sapphire substrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbc4a567c60f1fbddec80cb9d5c5273b
https://doi.org/10.1016/j.cirp.2017.04.018
https://doi.org/10.1016/j.cirp.2017.04.018
Autor:
Rei Sekiguchi, Yasuhiro Kakinuma, Katsutoshi Tanaka, Yuya Kawana, Masahiko Fukuta, Yuta Mizumoto
Publikováno v:
Materials Science Forum. 874:241-246
Large aperture lenses with high surface quality are demanded for professional imaging products such as single-lens reflex cameras and astronomical telescopes. Large aperture optical lenses are shaped by ultra-precision grinding and finished by prolon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd4c857e03c81f48f15b376505b8fa1e
https://doi.org/10.4028/www.scientific.net/msf.874.241
https://doi.org/10.4028/www.scientific.net/msf.874.241
Autor:
Hiroi Kangawa, Yosuke Nakagawa, Takasumi Tanabe, Yasuhiro Kakinuma, Yuta Mizumoto, Hiroki Itobe
Publikováno v:
Procedia CIRP. 45:139-142
Optical micro-resonators attract interests as essential components to develop optical signal processing circuits which can reduce energy loss. Single-crystal calcium fluoride (CaF2) could be the most suitable material from a viewpoint of optical prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90a1da70ec8ea7d1945d6d4e873b8e44